Change search
ReferencesLink to record
Permanent link

Direct link
A broadband wide-area network as an enabler of improved power system maintenance
KTH, School of Electrical Engineering (EES), Industrial Information and Control Systems.ORCID iD: 0000-0003-3014-5609
2006 (English)In: IEEE Transactions on Power Delivery, ISSN 0885-8977, E-ISSN 0885-8877, Vol. 21, no 1, 108-112 p.Article in journal (Refereed) Published
Abstract [en]

Wide-area networks (WANs) are being deployed worldwide at power utilities. By replacing vintage narrowband solutions, broadband communications can now be used for an entire utility enterprise. One new possibility that has opened up is to improve power system maintenance. During the last ten years, the benefits of adequate asset management have become increasingly clear in the power industry due to the economic pressures and aging infrastructure. An apparent tool to improve the asset-management strategies is the implementation of information technology systems that support the operational processes. The impact of these systems can be further enhanced by efficient communications, allowing the proliferation of functionality and data access. This paper describes the initial stages in analyzing the combined effects of enhanced communication and maintenance requirements. It provides a useful maintenance categorization, based on empirical data. Also, areas of improvement for power system maintenance are elucidated together with the benefit of enhanced communications.

Place, publisher, year, edition, pages
2006. Vol. 21, no 1, 108-112 p.
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-13349DOI: 10.1109/TPWRD.2005.852266ISI: 000234305200014ScopusID: 2-s2.0-33244467203OAI: diva2:324160
QC 20100614Available from: 2010-06-14 Created: 2010-06-14 Last updated: 2010-06-14Bibliographically approved
In thesis
1. Use of the CIM framework for data management in maintenance of electricity distribution networks
Open this publication in new window or tab >>Use of the CIM framework for data management in maintenance of electricity distribution networks
2006 (English)Doctoral thesis, comprehensive summary (Other scientific)
Abstract [en]

Aging infrastructure and personnel, combined with stricter financial constraints has put maintenance, or more popular Asset Management, at the top of the agenda for most power utilities. At the same time the industry reports that this area is not properly supported by information systems. Today’s power utilities have very comprehensive and complex portfolios of information systems that serve many different purposes. A common problem in such heterogeneous system architectures is data management, e.g. data in the systems do not represent the true status of the equipment in the power grid or several sources of data are contradictory. The research presented in this thesis concerns how this industrial problem can be better understood and approached by novel use of the ontology standardized in the Common Information Model defined in IEC standards 61970 & 61968.

The theoretical framework for the research is that of data management using ontology based frameworks. This notion is not new, but is receiving renewed attention due to emerging technologies, e.g. Service Oriented Architectures, that support implementation of such ontological frameworks. The work presented is empirical in nature and takes its origin in the ontology available in the Common Information Model. The scope of the research is the applicability of the CIM ontology, not as it was intended i.e. in systems integration, but for analysis of business processes, legacy systems and data. The work has involved significant interaction with power distribution utilities in Sweden, in order to validate the framework developed around the CIM ontology. Results from the research have been published continuously, this thesis consists of an introduction and summary and papers describing the main contribution of the work.

The main contribution of the work presented in this thesis is the validation of the proposition to use the CIM ontology as a basis for analysis existing legacy systems. By using the data models defined in the standards and combining them with established modeling techniques we propose a framework for information system management. The framework is appropriate for analyzing data quality problems related to power systems maintenance at power distribution utilities. As part of validating the results, the proposed framework has been applied in a case study involving medium voltage overhead line inspection. In addition to the main contribution, a classification of the state of the practice system support for power system maintenance at utilities has been created. Second, the work includes an analysis and classification of how high performance Wide Area communication technologies can be used to improve power system maintenance including improving data quality.

Place, publisher, year, edition, pages
Stockholm: KTH, 2006
Trita-EE, ISSN 1653-5146 ; 2006:17
Asset Management, Electricity Distribution Networks, Information Systems, Data Quality, Power System Modeling, Enterprise Architecture, Common Information Model, Ontology
National Category
Information Science
urn:nbn:se:kth:diva-3985 (URN)
Public defence
2006-06-07, F3, Lindstedtsvägen 26, Stockholm, 10:00
QC 20100614Available from: 2006-05-22 Created: 2006-05-22 Last updated: 2010-06-14Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Nordstrom, Lars
By organisation
Industrial Information and Control Systems
In the same journal
IEEE Transactions on Power Delivery
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 31 hits
ReferencesLink to record
Permanent link

Direct link